Armonia is the first loudspeaker of the Apertura range to use this specific shape, which helps to make this loudspeaker so neutral.
Two sides with curves of different radius. No symmetrical faces, but angles between front and back panels carefully calculated to maximize stiffness and to reduce cabinet resonance.
The multiple internal bracing panels form the skeleton on which the various panels are assembled. These multiply panels of high density MDF make a laminar structure more rigid and damped than a conventional structure.
To optimize the dispersal of structure‐borne noise, the Armonia enclosure stands on its central cone positioned on the axis of the center of gravity. The four other spikes are for stability only.
Armonia use a 7″ bass/mid‐range unit driven by a powerful magnetic circuit of 11cm in diameter, totally decompressed. The „Isotactic matrix „cone combines stiffness and damping, to allow playback of a wide bandwidth without any break‐up mode and with low distortion.The chassis shape is the result of a study using CAD and finite element analysis. Thanks to its thin branches, the frame leaves the rear of the drive unit totally free to improve the propagation of the rear wave‐form.The high frequency drive unit is from a new generation of ribbon tweeter that uses an aluminum / polymer sandwich diaphragm, more linear and less fragile than previous generations.
The use of a Neodymium magnetic circuit and a membrane of only 18mg (10 times less than a dome tweeter of similar emissive area), allows accurate reproduction of all transients.
The crossover is the brainchild of Christian Yvon.
This proprietary filter structure called „DRIM ‚ has an ellipse on one of its branches, with three different slopes: 6dB, 12dB, 24dB per octave. The overall intersection is 6 dB at the cutoff frequency, allowing a minimum intermodulation zone.
A strict phase optimization makes possible a three‐dimensional stereo soundstage.Musically, Armonia combines a wide frequency response, accuracy, and a remarkable sense of musical phrasing. It is capable of great gentleness, but remains rock‐solid even on the most dynamic tracks.
Armonia may be associated with low‐mid power (40‐50W) high‐quality electronics, as well as the most ambitious amplifiers.

und in den anderen Kartons befindet sich die Onira.

– Introduction

Onira takes up the special cabinet shape introduced on Armonia.
The project is more ambitious, the resources deployed more substantial.
The cabinet structure of multiply high density MDF is increased to 25mm for the four sides, and 47mm for the top and bottom.
This laminar structure is formed around a framework of six heavy bracing panels.
To optimize the flow of structure‐borne noise, the Onira cabinet stands on a central cone positioned on the axis of the center of gravity. The four side spikes are for stability only.
The Onira uses two 17cm bass/mid‐range drivers, identical to those used on Armonia. This drive‐unit has a powerful magnetic circuit of 11cm in diameter, totally decompressed. The „Isotactic matrix “ cone combines stiffness and damping, to allow playback of a wide bandwidth without any break‐up mode and with low distortion.
A copper ring on the pole piece reduces distortion.
An extensive study of the internal load architecture brings the benefit of a truly harmonised operation of the two mid‐woofers. This is very often not the case.
The Onira high frequency drive‐unit, like that of the Armonia, is from a new generation of ribbon tweeters using an aluminum / polymer sandwich diaphragm.
This tweeter has an emitting surface twice that of the Armonia, so far greater than all dome tweeters on the market, for a mass ten times lower.
This feature allows us to choose a lower crossover frequency and to take advantage of the finesse, precision and attack of a ribbon tweeter over a wider frequency range.
No great system can exist without a filter worthy of the name, and that of the Onira is no exception and contributes to the exceptional sound quality of this loudspeaker.
The filter, developed by Christian Yvon, uses a „DRIM“ architecture. It allows him to shape the frequency response of each drive unit, and thus optimize the crossover transition zone and minimize intermodulation.
Three different slopes of successively 6dB, 12dB and 24dB per octave at the transition give the benefit of the highest possible linearity combined with respect of time alignment
Musically speaking, Onira displays all the common elements of Apertura loudspeakers: accurate timbres, precision, an incredibly wide dynamic range, and a total stability whether listening to a large orchestral tutti or the most subtle solo passages.
The performers‘ physical presence is outstanding. Onira gives precedence to the music and makes you rediscover your favorite tracks.